Merge branch 'hotfix/1.5.3'
Change hash function for ientry hash table.
Added counters for ientry htable collision.
Added postinst and prerm scripts for rozofs-rozofsmount Debian package.
Change version to 1.5.4.
Merge branch 'hotfix/1.5.4' into develop

Conflicts:
	CMakeLists.txt
	debian/changelog
	manager/rozofs/__init__.py